无锡市水环境的卫星遥感分析

Satellite Remote Sensing on Water Environment in Wuxi, Jiangsu Province

利用计算机图像处理和多元统计方法处理了无锡市卫星遥感数据,形象直观地显示了无锡市水环境的宏观面貌,较好地反映了无锡水网主干河道的水质空间分布特征。研究表明,卫星遥感技术作为地面监测方法的一种有效补充,可提供丰富的遥感水质信息。

Satellite image acquired from U. S. Landsat--5 The matic Mapper (TM) sensor in July 1991 for Wuxi, Jiangsu province was handled on computer with image processing technique and statistical approach. The in- formation extracted from remote sensing image clearly displayed the synopsis of water environment in Wuxi which was characterized as severe pollution. The spa- tial water quality distribution maps derived from image classification well correlated with surface water quality monitoring data. The result showed the great po- tential of satellite remote sensing in environmental mo- nitoring and water quality mapping.